641
FZUS63 KMQT 100145
GLFLS

Open Lake Forecast for Lake Superior
National Weather Service Marquette MI
945 PM EDT Sun Jun 9 2024

For waters beyond 5 nautical miles of shore on Lake Superior.

Waves are the significant wave height - the average of the
highest 1/3 of the wave spectrum. Occasional wave height is the
average of the highest 1/10 of the wave spectrum.

.SYNOPSIS... Ridging near 30.0 inches has settled over western
Lake Superior this evening. The ridge builds to 30.1 inches
Monday morning as the high moves overhead and gradually weakens to
30.0 inches Tuesday afternoon. A 29.4 inch low pressure system
over western Ontario Tuesday evening moves to near James Bay by
Wednesday evening, dragging a 29.6 inch trough over Lake Superior
Thursday. 30.0 inch ridging moves into Lake Superior on Friday.

LSZ162-100945-
Lake Superior west of a line from Saxon Harbor WI to Grand
Portage MN beyond 5NM-
945 PM EDT Sun Jun 9 2024 /845 PM CDT Sun Jun 9 2024/

.REST OF TONIGHT...Northwest winds 5 to 15 knots veering north
after midnight. Waves calm to 2 feet.
.MONDAY...North winds 5 to 15 knots veering south in the
afternoon. Waves calm to 2 feet.
.MONDAY NIGHT...South winds 5 to 15 knots backing southeast after
midnight. Waves calm to 2 feet.
.TUESDAY...Southeast winds 5 to 15 knots becoming south 10 to
20 knots by mid afternoon. A chance of rain showers. A slight
chance of thunderstorms by mid afternoon. Waves calm to 2 feet.
.TUESDAY NIGHT...Southwest winds 10 to 20 knots veering west
after midnight. Waves calm to 2 feet.
.WEDNESDAY...Southwest winds 10 to 20 knots. Waves building to
1 to 3 feet, then subsiding to calm to 2 feet.
.WEDNESDAY NIGHT...Southwest winds 10 to 20 knots veering west
after midnight. A chance of showers and thunderstorms. Waves calm
to 2 feet.
.THURSDAY...West winds 10 to 20 knots. Waves calm to 2 feet.
.FRIDAY...West winds 10 to 20 knots becoming northeast 5 to
15 knots. Waves calm to 2 feet.

$$

LSZ263-100945-
Lake Superior from Saxon Harbor WI to Upper Entrance to Portage
Canal MI 5NM off shore to the US/Canadian border including Isle
Royale National Park-
945 PM EDT Sun Jun 9 2024

.REST OF TONIGHT...West winds 5 to 15 knots veering north after
midnight. Waves calm to 2 feet.
.MONDAY...North winds 5 to 15 knots backing southwest in the
afternoon. Waves calm to 2 feet.
.MONDAY NIGHT...Southwest winds 5 to 15 knots backing south late.
Waves calm to 2 feet.
.TUESDAY...South winds 5 to 15 knots increasing to 10 to 20 knots
by mid afternoon. A chance of rain showers by mid afternoon.
Waves calm to 2 feet.
.TUESDAY NIGHT...South winds 5 to 15 knots veering southwest
after midnight. A chance of showers through midnight. Waves
building to 1 to 3 feet.
.WEDNESDAY...Southwest winds 10 to 20 knots. Waves 1 to 3 feet.
.WEDNESDAY NIGHT...Southwest winds 5 to 15 knots. A chance of
showers. Waves subsiding to calm to 2 feet.
.THURSDAY...West winds 5 to 15 knots. A chance of showers. Waves
calm to 2 feet.
.FRIDAY...West winds 5 to 15 knots backing southwest. Waves calm
to 2 feet.

$$

LSZ264-100945-
Lake Superior from Upper Entrance to Portage Canal to Manitou
Island MI 5NM off shore to the US/Canadian Border-
945 PM EDT Sun Jun 9 2024

.REST OF TONIGHT...Northwest winds 10 to 20 knots veering north
after midnight, then diminishing to 5 to 15 knots late. Waves
1 to 3 feet.
.MONDAY...North winds 5 to 15 knots backing west in the
afternoon. Waves subsiding to calm to 2 feet.
.MONDAY NIGHT...West winds 5 to 15 knots backing south late.
Waves calm to 2 feet.
.TUESDAY...South winds 5 to 15 knots backing southeast by mid
afternoon. A slight chance of showers by mid afternoon. Waves
calm to 2 feet.
.TUESDAY NIGHT...South winds 5 to 15 knots veering southwest
after midnight. A chance of showers through midnight. Waves
building to 1 to 3 feet.
.WEDNESDAY...Southwest winds 10 to 20 knots. Waves 1 to 3 feet.
.WEDNESDAY NIGHT...Southwest winds 5 to 15 knots. A chance of
showers. Waves subsiding to calm to 2 feet.
.THURSDAY...West winds 10 to 20 knots diminishing to 5 to
15 knots. Waves calm to 2 feet.
.FRIDAY...West winds 5 to 15 knots. Waves calm to 2 feet.

$$

LSZ265-100945-
Lake Superior West of Line from Manitou Island to Marquette MI
Beyond 5NM from shore-
945 PM EDT Sun Jun 9 2024

.REST OF TONIGHT...Northwest winds 10 to 20 knots veering north
late. Waves 1 to 3 feet subsiding to calm to 2 feet, then
building to 1 to 3 feet.
.MONDAY...North winds 10 to 20 knots backing northwest late.
Waves subsiding to calm to 2 feet.
.MONDAY NIGHT...West winds 5 to 15 knots backing south late.
Waves calm to 2 feet.
.TUESDAY...Southeast winds 5 to 15 knots increasing to 10 to
20 knots by mid afternoon. A slight chance of showers by mid
afternoon. Waves calm to 2 feet.
.TUESDAY NIGHT...South winds 10 to 20 knots veering southwest
after midnight. A chance of showers. Waves calm to 2 feet.
.WEDNESDAY...West winds 10 to 20 knots backing southwest by mid
afternoon. Waves calm to 2 feet.
.WEDNESDAY NIGHT...South winds 10 to 20 knots veering southwest
after midnight. A chance of showers. Waves calm to 2 feet.
.THURSDAY...West winds 10 to 20 knots. A chance of showers. Waves
calm to 2 feet.
.FRIDAY...Northwest winds 10 to 20 knots becoming west 5 to
15 knots. Waves calm to 2 feet.

$$

LSZ266-100945-
Lake Superior East of a line from Manitou Island to Marquette MI
and West of a line from Grand Marais MI to the US/Canadian Border
Beyond 5NM from shore-
945 PM EDT Sun Jun 9 2024

.REST OF TONIGHT...Northwest winds 10 to 20 knots veering north
after midnight. Waves 2 to 4 feet subsiding to 1 to 3 feet, then
building to 2 to 4 feet.
.MONDAY...North winds 10 to 20 knots backing northwest in the
afternoon. Waves subsiding to 1 to 3 feet.
.MONDAY NIGHT...Northwest winds 5 to 15 knots backing west after
midnight, then backing south late. Waves subsiding to calm to
2 feet.
.TUESDAY...South winds 5 to 15 knots backing southeast by mid
afternoon. Waves calm to 2 feet.
.TUESDAY NIGHT...South winds 15 to 25 knots diminishing to 10 to
20 knots after midnight. A chance of showers. Waves building to
1 to 3 feet.
.WEDNESDAY...Southwest winds 10 to 20 knots. Waves subsiding to
calm to 2 feet.
.WEDNESDAY NIGHT...South winds 10 to 20 knots. A chance of
showers. Waves calm to 2 feet.
.THURSDAY...West winds 10 to 20 knots. A chance of showers. Waves
calm to 2 feet.
.FRIDAY...West winds 10 to 20 knots diminishing to 5 to 15 knots.
Waves calm to 2 feet.

$$

LSZ267-100945-
Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off
shore to the US/Canadian border-
945 PM EDT Sun Jun 9 2024

.REST OF TONIGHT...Northwest winds 10 to 20 knots increasing to
15 to 25 knots after midnight, then veering north late. Waves
2 to 4 feet subsiding to 1 to 3 feet, then building to 2 to
4 feet.
.MONDAY...North winds 10 to 20 knots becoming northwest 15 to
25 knots in the afternoon. Waves subsiding to 1 to 3 feet.
.MONDAY NIGHT...Northwest winds 10 to 20 knots diminishing to
5 to 15 knots after midnight, then backing west late. Waves
subsiding to calm to 2 feet.
.TUESDAY...South winds 5 to 15 knots backing southeast by mid
afternoon. Waves calm to 2 feet.
.TUESDAY NIGHT...South winds 10 to 20 knots. A chance of showers.
Waves building to 1 to 3 feet.
.WEDNESDAY...Southwest winds 10 to 20 knots. Waves subsiding to
calm to 2 feet.
.WEDNESDAY NIGHT...South winds 10 to 20 knots. A chance of
showers. Waves calm to 2 feet.
.THURSDAY...West winds 10 to 20 knots. A chance of showers. Waves
calm to 2 feet.
.FRIDAY...West winds 10 to 20 knots becoming northwest 5 to
15 knots. Waves calm to 2 feet.

$$
LSZ261-100945-
MAFOR 1003/
Superior West 11700 12810 11800 11200 11400 11500 11400. Waves 1
foot or less.

Superior North Central 11820 13810 11710 13610. Waves 1 to 3
feet.

Superior South Central 11710 12820 11810 13710 11600. Waves 1 to
3 feet overnight and Monday. Waves 2 feet or less Monday evening.

Superior East 11720 12820 11810 11710 12720 11710. Waves 2 to 4
feet.

$$

BW

Experimental modernized open lake forecast is available online at
weather.gov/mqt/glftable

Graphical marine forecasts are available online at:
weather.gov/greatlakes